Home / 9,715.08-13,412.34-6,412.68

Finding the Fourth Proportional to 9,715.08, 13,412.34 and 6,412.68

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Solution

The fourth proportional to 9,715.08, 13,412.34 and 6,412.68 is: 8,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.08 : 13,412.34 = 6,412.68 : x
  2. Step 2: Convert to fraction form
    9,715.08/13,412.34 = 6,412.68/x
  3. Step 3: Cross multiply
    9,715.08x = 13,412.34 × 6,412.68
  4. Step 4: Simplify right side
    9,715.08x = 86,009,044.47
  5. Step 5: Solve for x
    x = 86,009,044.47/9,715.08
  6. Step 6: Final answer
    x = 8,853.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.